formbook | 798342d87cf72af042f7ba3d59d4c191e46cc7b11da7e618e595911d3b6a8f4b

General

Target

JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe
Size

445KB
MD5

395812837b0aa6cf4b6a8d3422722949
SHA1

65aeeed97bbd92e2895c7991244579b5f6a466a4
SHA256

798342d87cf72af042f7ba3d59d4c191e46cc7b11da7e618e595911d3b6a8f4b
SHA512

0abf895278479548229544f9d94336088cb8353f2185419de2161bae84700817e190317f2e3ce6ed64e00922b6eb7d4bd27c42c3dc8fa4425900ce88d5786215
SSDEEP

6144:ckfxJlwLX+7szkXV6ufajCf8t00wn90UkKMf2f2LNvNSrhSHGYdSwQiVn7BSE0zF:H0y0mp0t0rnhuvIrUmiv7BSEKw

Score

10^/10

formbook h0gd discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

h0gd

Decoy

hispansud.com

sanslisin156.com

izmediajo.com

fukugyo-kuchicomi.net

zjzmkj.net

powerupinnovations.com

unigradecuracao.net

inspirasimagz.com

isaacnqwilliams.store

john316graphics.net

wcparadise.net

trejoblanco.com

100x100cultura.com

beedivinehomedecor.com

polant.xyz

ascrete.com

www23855.com

emmagx.com

rekotalent.biz

fersamultiservicios.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1456-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1456-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2112-21-0x00000000007D0000-0x00000000007FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3352 set thread context of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 1456 set thread context of 3568	1456	MSBuild.exe	56
PID 2112 set thread context of 3568	2112	cmstp.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
1456	MSBuild.exe
1456	MSBuild.exe
1456	MSBuild.exe
1456	MSBuild.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe
2112	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1456	MSBuild.exe
1456	MSBuild.exe
1456	MSBuild.exe
2112	cmstp.exe
2112	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	MSBuild.exe
Token: SeDebugPrivilege	2112	cmstp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3352 wrote to memory of 1456	3352	JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe	98
PID 3568 wrote to memory of 2112	3568	Explorer.EXE	99
PID 3568 wrote to memory of 2112	3568	Explorer.EXE	99
PID 3568 wrote to memory of 2112	3568	Explorer.EXE	99
PID 2112 wrote to memory of 4544	2112	cmstp.exe	101
PID 2112 wrote to memory of 4544	2112	cmstp.exe	101
PID 2112 wrote to memory of 4544	2112	cmstp.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3568
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_395812837b0aa6cf4b6a8d3422722949.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1456
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1456-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1456-15-0x0000000001380000-0x00000000016CA000-memory.dmp

Filesize
3.3MB

Download
memory/1456-16-0x0000000000F00000-0x0000000000F14000-memory.dmp

Filesize
80KB

Download
memory/1456-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2112-21-0x00000000007D0000-0x00000000007FF000-memory.dmp

Filesize
188KB

Download
memory/2112-20-0x00000000000B0000-0x00000000000C6000-memory.dmp

Filesize
88KB

Download
memory/2112-19-0x00000000000B0000-0x00000000000C6000-memory.dmp

Filesize
88KB

Download
memory/3352-6-0x0000000007AF0000-0x0000000007AFE000-memory.dmp

Filesize
56KB

Download
memory/3352-1-0x0000000000BE0000-0x0000000000C56000-memory.dmp

Filesize
472KB

Download
memory/3352-9-0x000000000A4E0000-0x000000000A57C000-memory.dmp

Filesize
624KB

Download
memory/3352-10-0x000000000A5E0000-0x000000000A638000-memory.dmp

Filesize
352KB

Download
memory/3352-7-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3352-13-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3352-5-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/3352-4-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-8-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3352-3-0x0000000007B30000-0x0000000007BC2000-memory.dmp

Filesize
584KB

Download
memory/3352-2-0x0000000008040000-0x00000000085E4000-memory.dmp

Filesize
5.6MB

Download
memory/3568-18-0x0000000002FC0000-0x000000000308E000-memory.dmp

Filesize
824KB

Download
memory/3568-22-0x0000000002FC0000-0x000000000308E000-memory.dmp

Filesize
824KB

Download
memory/3568-26-0x0000000008920000-0x00000000089B8000-memory.dmp

Filesize
608KB

Download
memory/3568-27-0x0000000008920000-0x00000000089B8000-memory.dmp

Filesize
608KB

Download
memory/3568-29-0x0000000008920000-0x00000000089B8000-memory.dmp

Filesize
608KB

Download

Analysis

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